Gamma-Ray Induced Radiation Damage Up to 340 Mrad in Various Scintillation Crystals
Abstract
Because of their superb energy resolution and detection efficiency scintillation crystals are widely used in high energy and nuclear physics experiments. A crucial issue is radiation damage in crystals. We report an investigation on γ-ray induced radiation damage in various crystal scintillators of large size, including BaF_2, BGO, CeF_3, pure CsI, LSO/LYSO/LFS and PWO, with an integrated dose up to 340 Mrad and a dose rate up to 1 Mrad/h. Optical and scintillation properties of these crystal samples were measured before and after irradiations. The results show that pure CsI has good radiation hardness below 100 krad. BaF_2, BGO and LYSO have good radiation hardness beyond 1 Mrad. In terms of light output degradation LYSO is clearly the best among all scintillation crystals.
Additional Information
© 2015 IEEE. Manuscript received July 20, 2015; revised November 16, 2015; accepted December 01, 2015. Date of publication March 09, 2016; date of current version April 15, 2016. This work was supported in part by the U.S. Department of Energy Grant DE-SC0011925.Additional details
Identifiers
- Eprint ID
- 67541
- Resolver ID
- CaltechAUTHORS:20160601-110925910
Funding
- Department of Energy (DOE)
- DE-SC0011925
Dates
- Created
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2016-06-01Created from EPrint's datestamp field
- Updated
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2021-11-11Created from EPrint's last_modified field